Situation 1: Two automobiles A and B are approaching each other in adjacent highway lanes. At t = 0 seconds, A and B are 1 km apart, their speeds are VA = 110 kphand Ve = 60 kph and they are at points P and Q respectively. Knowing that A passes point Q. 40 seconds after B was there and that B passes point P, 42 seconds afterA was there.Question 6Question 7Question 8Determine the time when they pass each other.Determine the speed of B when they pass each other.Determine the acceleration of A.O 25.89 secO 24.88 m/sO 0.139 m/s^2O 20.89 secO 25.12 m/sO -0.278 m/s^2O 10.89 secO 23.77 m/sO 0.34 m/s^2O 15.89 secO 22.54 m/sO 0.48 m/s^2

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Answered: Situation 1: Two automobiles A and B…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter3: Two-dimensional Kinematics

Section: Chapter Questions

Problem 64PE: (a) Use the distance and velocity data in Figure 3.64 to find the rate of expansion as a function of...

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A pirate has buried his treasure on an island with five trees located at the points (30.0 m, 20.0 m), (60.0 m, 80.0 m), (10.0 m, 10.0 m), (40.0 m, 30.0 m), and (70.0 m, 60.0 m), all measured relative to some origin, as shown in Figure P1.69. His ships log instructs you to start at tree A and move toward tree B, but to cover only one-half the distance between A and B. Then move toward tree C, covering one-third the distance between your current location and C. Next move toward tree D, covering one-fourth the distance between where you are and D. Finally move toward tree E, covering one-fifth the distance between you and E, stop, and dig. (a) Assume you have correctly determined the order in which the pirate labeled the trees as A, B, C, D, and E as shown in the figure. What are the coordinates of the point where his treasure is buried? (b) What If? What if you do not really know the way the pirate labeled the trees? What would happen to the answer if you rearranged the order of the trees, for instance, to B (30 m, 20 m), A (60 m, 80 m), E (10 m, 10 m), C (40 m, 30 m), and D (70 m, 60 m)? State reasoning to show that the answer does not depend on the order in which the trees are labeled. Figure 1.69
(a) Use the distance and velocity data in Figure 3.64 to find the rate of expansion as a function of distance. (b) If you extrapolate back in time, how long ago would all of the galaxies have been at approximately the same position? The two parts of this problem give you some idea of how the Hubble constant for universal expansion and the time back to the Big Bang are determined, respectively. Figure 3.64 Five galaxies on a straight line, showing their distances and velocities relative to the Milky Way (MW) Galaxy. The distances are in millions of light years (Mly), where a light year is the distance light travels in one year. The velocities are nearly proportional to the distances. The sizes of the galaxies are greatly exaggerated; an average galaxy is about 0.1 MlY across.
A train upon passing point A at a speed of 72 kph accelerates at 0.75 m/s2 for 1 minute along a straight path then decelerates at 1.0 m/s2. How far in kilometers from point A will it be 2 minutes after passing point A. (Please make the solution easy to understand, thank youu)
m m 2 Traveling with an initial speed of 128 kr, a Cessna 172 accelerates at 6000kr during level flight. How long will it take to reach a speed of 226kr ? Give your answer in seconds (s).
Two triggers, 20 feet apart, activate when a car's tires run over them. The time between the two signals is 0.4 seconds. 1) Calculate the speed of the car in mph. (This may speed your conversion: 88 ft/s = 60 mph.) 2) how might someone evade the speed trap, if he spots it just as he's about to hit the first signal?
46 3:14Y SITUATION 4. The rectilinear motion of a particle is governed by a where a is in m/s² and x is in meters. Given that at time t = 1sec, x = 2m and v= 2m/s. a. Write the equarion of motion b. Determine the position, velocity and acceleration at t = 4sec. ||| -16 G U
The Moon is about 3.8 x 10° m from Earth. Traveling at the speed of light, 3.0 x 10° m/s, how long does it take a laser beam to go from Earth to the Moon and back again (in s)? The same physics was responsible for the noticeable delay in communications signals between lunar astronauts and controllers at the Houston Space Flight Center. S
Question 6 1 p Which of the following is NOT a possible unit for velocity? O meters/second toward first base O miles per hour southbound O kilometers north O kilometers per minute north O O O
EN HOMEWORK d) Determines and a when t=3s if s=0 when t 0. %3= v (m/s) I (s) 4. from rr and has a yslocity + 2. 2.
can you answer? be fast please. The values of 0.4 and 0.1 in the figure.
2. (a) The value of vy is still positive and decreases only marginally over time. (b) The value of vy is changed from positive to negative over time. (c) The value of vy is always negative and increases only slowly over time. (d) The value of vy is still positive and constant over time. (e) The value of vy is changed from negative to positive over time.
A car traveled at a rate of 50 km/hr for 8 minutes and then at 25 km/hr for 7 min and finally at 20 km/hr for 2 min. What is APPROXIMATELY the average speed for ?the complete trip of the car in (m/sec) 10.71 O 13.74 O non of them O 12.88 O

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